---
name: vercel-functions-runtime
description: Vercel Functions and Edge Runtime, including cron jobs and routing middleware. Use when building APIs, serverless workloads, or scheduled tasks on Vercel.
user-invocable: false
disable-model-invocation: true
progressive_disclosure:
entry_point:
summary: "Vercel Functions and Edge Runtime, including cron jobs and routing middleware. Use when building APIs, serverless workloads, or scheduled tasks on Vercel."
when_to_use: "When working with vercel-functions-runtime or related functionality."
quick_start: "1. Review the core concepts below. 2. Apply patterns to your use case. 3. Follow best practices for implementation."
---
# Vercel Functions and Runtime Skill
---
progressive_disclosure:
entry_point:
summary: "Vercel Functions and Edge Runtime: serverless APIs, edge execution, cron jobs, and routing middleware."
when_to_use:
- "When building API routes or serverless logic"
- "When targeting the Edge Runtime"
- "When scheduling tasks with cron jobs"
quick_start:
- "Create a function entry point"
- "Choose the runtime (Node or Edge)"
- "Configure cron schedules"
- "Deploy and monitor"
token_estimate:
entry: 90-110
full: 3600-4700
---
## Overview
Vercel Functions provide serverless execution for APIs and background tasks. The Edge Runtime enables low-latency execution closer to users.
## Vercel Functions
- Define serverless functions in the project structure.
- Use environment variables for configuration.
- Review logs for errors and performance.
## Edge Runtime
- Use the Edge Runtime for low-latency execution.
- Validate compatibility with the Edge runtime constraints.
## Cron Jobs
- Schedule jobs with cron definitions.
- Use cron for periodic maintenance tasks or sync jobs.
## Routing and Middleware
- Apply routing middleware for request handling.
- Use headers, rewrites, and redirects to control traffic.
## Complementary Skills
When using this skill, consider these related skills (if deployed):
- **vercel-deployments-builds**: Deployment workflow and release controls.
- **vercel-networking-domains**: Routing, headers, and edge caching.
- **vercel-observability**: Logs and tracing for function debugging.
*Note: Complementary skills are optional. This skill is fully functional without them.*
## Resources
**Vercel Docs**:
- Functions: https://vercel.com/docs/functions
- Edge Runtime: https://vercel.com/docs/functions/runtimes/edge
- Cron Jobs: https://vercel.com/docs/cron-jobs
- Routing Middleware: https://vercel.com/docs/routing-middleware